Waterloo August 4 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of August 4.
August 4 All-Time Records
1895–2024
Highest temperature 98 °F 1947
Lowest temperature 45 °F 1978
Lowest daily high 58 °F 1915
Highest daily low 73 °F 1982
Most precipitation 2.13 inches 1968
Most snow none -
August 4 Average Weather
1991–2020 1
Average high 82.5 °F
Average low 60.8 °F
Chance precipitation 28.0%
Chance snow 0%
Waterloo August 4 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 92 64 0.00 0.0
2022 85 60 0.00 0.0
2021 86 53 0.00 0.0
2020 79 50 0.00 0.0
2019 89 59 0.00 0.0
2018 83 66 0.00 0.0
2017 77 50 0.00 0.0
2016 89 70 1.59 0.0
2015 81 53 0.00 0.0
2014 85 63 0.00 0.0
2013 78 53 0.00 0.0
2012 80 62 0.17 0.0
2011 82 59 0.00 0.0
2010 87 69 0.00 0.0
2009 82 57 0.00 0.0
2008 89 72 0.11 0.0
2007 73 64 0.90 0.0
2006 86 56 0.00 0.0
2005 80 58 0.01 0.0
2004 80 59 0.01 0.0
2003 79 55 0.00 0.0
2002 83 70 0.76 0.0
2001 88 67 0.00 0.0
2000 82 59 0.00 0.0
1999 79 61 0.00 0.0
1998 80 67 2.06 0.0
1997 85 60 0.00 0.0
1996 76 67 0.07 0.0
1995 90 66 0.00 0.0
1994 78 50 0.00 0.0
1993 75 54 0.00 0.0
1992 74 46 0.00 0.0
1991 77 57 0.00 0.0
1990 82 58 0.00 0.0
1989 97 72 0.07 0.0
1988 92 72 0.28 0.0
1987 81 59 0.00 0.0
1986 79 51 0.00 0.0
1985 75 60 0.00 0.0
1984 85 67 0.00 0.0
1983 91 68 0.00 0.0
1982 84 73 0.46 0.0
1981 87 70 0.00 0.0
1980 78 61 0.09 0.0
1979 89 66 0.28 0.0
1978 75 45 0.00 0.0
1977 82 62 0.00 0.0
1976 83 62 0.00 0.0
1975 93 59 0.00 0.0
1974 76 55 0.00 0.0
1973 88 66 0.00 0.0
1972 73 52 0.00 0.0
1971 71 49 0.00 0.0
1970 69 56 0.36 0.0
1969 84 57 0.00 0.0
1968 80 63 2.13 0.0
1967 77 55 0.00 0.0
1966 79 55 0.00 0.0
1965 81 59 0.00 0.0
1964 90 66 0.00 0.0
1963 82 59 0.00 0.0
1962 83 62 0.00 0.0
1961 87 60 0.97 0.0
1960 86 65 0.00 0.0
1959 91 69 0.00 0.0
1958 90 68 0.00 0.0
1957 76 54 0.00 0.0
1956 95 71 0.00 0.0
1955 92 72 0.00 0.0
1954 79 61 0.00 0.0
1953 77 69 0.21 0.0
1952 74 64 0.42 0.0
1951 76 58 0.00 0.0
1950 82 59 0.00 0.0
1949 85 55 0.00 0.0
1948 74 52 0.00 0.0
1947 98 73 0.00 0.0
1946 82 58 n/a 0.0
1945 72 62 n/a 0.0
1944 85 64 n/a 0.0
1943 77 65 0.03 0.0
1942 82 57 0.00 0.0
1941 92 72 n/a 0.0
1940 88 66 n/a 0.0
1939 90 53 0.00 0.0
1938 90 59 0.00 0.0
1937 90 63 0.13 0.0
1936 86 65 0.00 0.0
1935 92 63 0.05 0.0
1934 88 61 n/a 0.0
1933 79 49 0.00 0.0
1932 89 68 0.00 0.0
1931 95 67 0.00 0.0
1930 97 73 n/a 0.0
1929 79 49 n/a 0.0
1928 81 66 0.30 0.0
1927 88 52 0.00 0.0
1926 86 68 0.00 0.0
1925 89 56 0.00 0.0
1924 92 69 0.06 0.0
1923 85 66 1.45 0.0
1922 87 61 0.00 0.0
1921 79 56 n/a 0.0
1920 75 61 n/a 0.0
1919 94 70 n/a 0.0
1918 90 59 0.00 0.0
1917 87 62 n/a 0.0
1916 86 71 n/a 0.0
1915 58 53 0.12 0.0
1914 88 56 0.00 0.0
1913 93 60 0.00 0.0
1912 72 48 0.00 0.0
1911 77 59 n/a 0.0
1910 82 57 0.00 0.0
1909 86 67 0.00 0.0
1908 97 69 0.00 0.0
1907 76 51 n/a 0.0
1906 90 65 n/a 0.0
1905 84 63 0.00 0.0
1904 87 59 0.65 0.0
1903 77 63 1.76 0.0
1902 82 64 n/a 0.0
1901 83 52 0.00 0.0
1900 93 66 0.00 0.0
1899 73 65 n/a 0.0
1898 83 49 0.00 0.0
1897 76 67 n/a 0.0
1896 96 71 0.00 0.0
1895 92 52 0.00 0.0
What's the all-time high for Waterloo on 8/4?
For the date of Aug 4, the highest temperature ever reached in Waterloo history is 98 °F which happened in 1947.
Highest Temperatures in Waterloo on August 4
Rank Temperature Year
1 98 °F 1947
2 97 °F 1930
2 97 °F 1989
2 97 °F 1908
5 96 °F 1896
6 95 °F 1931
6 95 °F 1956
8 94 °F 1919
9 93 °F 1913
9 93 °F 1900
9 93 °F 1975
What's the all-time low for Waterloo on 8/4?
For the date of Aug 4, the lowest temperature ever reached in Waterloo history is 45 °F which happened in 1978.
Lowest Temperatures in Waterloo on August 4
Rank Temperature Year
1 45 °F 1978
2 46 °F 1992
3 48 °F 1912
4 49 °F 1898
4 49 °F 1929
4 49 °F 1933
4 49 °F 1971
8 50 °F 2020
8 50 °F 1994
8 50 °F 2017
Lowest High Temperatures in Waterloo on August 4
Rank Temperature Year
1 58 °F 1915
2 69 °F 1970
3 71 °F 1971
4 72 °F 1912
4 72 °F 1945
6 73 °F 2007
6 73 °F 1972
6 73 °F 1899
9 74 °F 1948
9 74 °F 1992
9 74 °F 1952
What's the most it has ever rained in Waterloo on 8/4?
For the date of Aug 4, the most precipitation ever recorded in Waterloo history is 2.13 inches which happened in 1968.
All-Time Most Precipitation in Waterloo on August 4
Rank Precipitation Year
1 2.13 inches 1968
2 2.06 inches 1998
3 1.76 inches 1903
4 1.59 inches 2016
5 1.45 inches 1923
6 0.97 inches 1961
7 0.90 inches 2007
8 0.76 inches 2002
9 0.65 inches 1904
10 0.46 inches 1982
Weather Station Details
Years Station Coordinates
1950–2024 Waterloo Municipal Airport location
1895–1950 Waterloo location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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